EXHIBIT 99.1
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P R E S S R E L E A S E
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CONTACT: Investor Relations Department
919-466-5492
investorrelations@spectrasite.com

SPECTRASITE REPORTS SECOND QUARTER 2005 RESULTS

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CARY, NC, JULY 28, 2005 - SpectraSite, Inc. (NYSE: SSI), one of the largest
wireless tower operators in the United States, today reported results for the
quarter ended June 30, 2005.

Total revenues for the second quarter of 2005 were $97.7 million as compared to
revenues of $87.6 million for the second quarter of 2004, representing an
increase of 11.6%. Operating income for the second quarter of 2005 was $22.5
million as compared to operating income of $14.7 million for the same period in
2004, representing an increase of 53.5%.

Other expense during the second quarter of 2005 was $10.5 million as compared to
other expense of $0.5 million during the second quarter of 2004. Other expense
items during the second quarter of 2005 primarily related to a $6.0 million
decrease in the fair value of the Company's five-year interest rate hedge
agreement and $4.5 million of expense associated with the proposed merger with
American Tower Corporation.

The Company's income from continuing operations was $0.4 million for the second
quarter of 2005 as compared to income from continuing operations of $2.9 million
for the same period in 2004. The Company's net loss was $1.4 million for the
second quarter of 2005 versus net income of $2.9 million during the second
quarter of 2004. The Company's basic and diluted net loss per share was $0.03
during the second quarter of 2005 versus net income of $0.06 per share during
the second quarter of 2004.

In describing the second quarter, Stephen H. Clark, President and CEO, stated,
"While we clearly posted strong financial results during the second quarter, I
am perhaps even more pleased with the current level of demand we are seeing on
our towers. Our backlog of new lease applications continues to remain robust,
which bodes well for the remainder of the year and into 2006."

Pursuant to SpectraSite's May 3, 2005, merger agreement with American Tower
Corporation, American Tower Corporation has agreed to expand the size of its
board of directors from six to ten members and appoint four new board members
from the SpectraSite board of directors, effective at the closing of the merger.
The nominating and corporate governance committees of each company unanimously
recommended that each of Stephen H. Clark, Paul Albert, Jr., Dean Douglas and
Samme Thompson be appointed to American Tower Corporation's board at the
closing. In the joint proxy statement/prospectus mailed to stockholders in
connection with the merger, the companies had previously identified Timothy G.
Biltz as an anticipated director nominee. Mr. Biltz has indicated to the
companies that, due to personal reasons, he has declined to be nominated as a
director.

At June 30, 2005, the Company had $88.6 million of cash on hand and $748 million
of debt. The Company owned or operated 7,834 towers and in-building systems as
of June 30, 2005.

CONFERENCE CALL INFORMATION

The Company is planning to host a conference call on Thursday, July 28, 2005, at
10:00 a.m. Eastern Daylight Time to discuss second quarter 2005 results. Dial in
information is as follows: 800-261-6483, access code 7926293. A replay of the
conference call will be available beginning two hours after the call has ended
until August 4, 2005. The replay dial in information is as follows: (800)
642-1687, access code 7926293.

ABOUT SPECTRASITE, INC.

SpectraSite, Inc. (www.spectrasite.com), based in Cary, North Carolina, is one
of the largest wireless tower operators in the United States. At June 30, 2005,
SpectraSite owned or operated approximately 10,000 revenue producing sites,
including 7,834 towers and in-building systems primarily in the top 100 markets
in the United States. SpectraSite's customers are leading wireless
communications providers, including Cingular, Nextel, Sprint PCS, T-Mobile and
Verizon Wireless.

SAFE HARBOR

This press release and oral statements made from time to time by representatives
of the Company may contain "forward-looking statements" concerning the Company's
financial and operating outlook, plans and strategies, its share repurchase
program, the proposed merger with American Tower Corporation, and the trading
markets for its securities. These forward-looking statements are subject to a
number of risks and uncertainties. The Company wishes to caution readers that
certain factors may impact the Company's actual results and could cause results
for subsequent periods to differ materially from those expressed in any
forward-looking statements made by or on behalf of the Company. Such factors
include, but are not limited to (i) the Company's ability to consummate its
previously announced merger transaction with American Tower Corporation, (ii)
the Company's substantial capital requirements and debt, (iii) market
conditions, (iv) the Company's dependence on demand for wireless communications
and related infrastructure, (v) competition in the communications tower
industry, including the impact of technological developments, (vi) consolidation
in the wireless industry and the tower industry, (vii) future regulatory
actions, (viii) conditions in its operating areas, and (ix) management's
estimates and assumptions included in the Company's 2005 outlook. These and
other important factors are described in more detail in the "Risk Factors" and
the "Management's Discussion and Analysis of Financial Condition and Results of
Operations" sections of the Company's SEC filings and public announcements. The
Company undertakes no obligation to update forward-looking statements to reflect
subsequently occurring events or circumstances.

# # #

CONDENSED CONSOLIDATED BALANCE SHEETS

JUNE 30, 2005 DECEMBER 31, 2004
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(UNAUDITED)

(IN THOUSANDS, EXCEPT SHARE AND PER
SHARE AMOUNTS)

ASSETS
Current assets:
Cash and cash equivalents ........................................... $ 88,629 $ 34,649
Accounts receivable, net of allowance of $5,225 and
$5,882, respectively ............................................... 10,389 9,061
Prepaid expenses and other .......................................... 14,454 13,855
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Total current assets .............................................. 113,472 57,565
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Property and equipment, net ............................................ 1,134,640 1,166,396
Customer contracts, net ................................................ 146,930 160,163
Goodwill ............................................................... 2,827 --
Accrued straight-line rents receivable ................................. 30,969 25,461
Other assets ........................................................... 19,207 21,487
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Total assets ...................................................... $ 1,448,045 $ 1,431,072
=========== ===========

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable .................................................... $ 4,809 $ 7,050
Accrued and other expenses .......................................... 31,875 31,959
Deferred revenue .................................................... 42,263 45,668
Current portion of credit facility .................................. 4,000 4,000
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Total current liabilities.......................................... 82,947 88,677
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Long-term portion of credit facility ................................... 544,000 546,000
Senior notes ........................................................... 200,000 200,000
Deferred revenue, net of current portion ............................... 18,645 19,969
Deferred straight-line lease expense ................................... 45,420 36,902
Other long-term liabilities ............................................ 43,787 42,205
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Total long-term liabilities ....................................... 851,852 845,076
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Commitments and Contingencies
Stockholders' equity:
Common stock, $0.01 par value, 250,000,000 shares authorized,
50,867,281 and 49,725,592 issued at June 30, 2005 and
December 31, 2004, respectively .................................... 509 497
Additional paid-in-capital .......................................... 732,223 717,320
Treasury stock at cost (3,679,881 shares at June 30, 2005 and
December 31, 2004) ................................................. (205,501) (196,050)
Accumulated deficit ................................................. (13,985) (24,448)
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Total stockholders' equity ........................................ 513,246 497,319
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Total liabilities and stockholders' equity ........................ $ 1,448,045 $ 1,431,072
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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

THREE MONTHS THREE MONTHS
ENDED ENDED
JUNE 30, 2005 JUNE 30, 2004
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(IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

Revenues ................................................................ $ 97,718 $ 87,555

Operating Expenses:
Costs of operations, excluding depreciation, amortization
and accretion expenses .............................................. 31,468 30,540
Selling, general and administrative expenses ......................... 14,471 13,511
Depreciation, amortization and accretion expenses .................... 29,242 28,818
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Total operating expenses ........................................... 75,181 72,869
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Operating income ........................................................ 22,537 14,686
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Other income (expense):
Interest income ...................................................... 490 315
Interest expense ..................................................... (11,884) (9,665)
Other income (expense) ............................................... (10,470) (514)
-------- --------
Total other income (expense) ....................................... (21,864) (9,864)
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Income from continuing operations before income taxes ................... 673 4,822

Income tax expense:
Income tax - current ................................................. 289 374
Income tax - deferred ................................................ (22) 1,542
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Total income tax expense ........................................... 267 1,916
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Income from continuing operations ....................................... 406 2,906

Discontinued operations:
Loss on disposal of discontinued segment ........................... (1,825) --
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Net income (loss) ....................................................... $ (1,419) $ 2,906
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Basic earnings per share:
Income from continuing operations .................................... $ 0.01 $ 0.06
Discontinued operations .............................................. (0.04) --
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Net income ........................................................... $ (0.03) $ 0.06
======== ========

Diluted earnings per share:
Income from continuing operations .................................... $ 0.01 $ 0.06
Discontinued operations .............................................. (0.04) --
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Net income ........................................................... $ (0.03) $ 0.06
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Weighted average common shares outstanding (basic) ...................... 47,010 48,421
======== ========
Weighted average common shares outstanding (diluted) .................... 47,010 52,792
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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

SIX MONTHS SIX MONTHS
ENDED ENDED
JUNE 30, 2005 JUNE 30, 2004
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(IN THOUSANDS)

OPERATING ACTIVITIES
Net income ........................................................ $ 10,463 $ 3,558

Adjustments to reconcile net income to net cash
provided by operating activities:
Depreciation .................................................. 51,849 49,767
Amortization of intangible assets .............................. 5,956 7,120
Amortization of debt issuance costs ............................ 1,260 2,144
Amortization of asset retirement obligation .................... 2,024 1,119
Non-cash compensation charges .................................. 159 261
Write-off of debt issuance costs ............................... 24 7
(Gain) loss on disposal of assets .............................. (1,463) 790
Write-off of customer contracts ................................ 58 624
Gain on derivative instruments ................................. (1,336) --
Loss on disposal of discontinued operations .................... 1,575 343
Deferred income taxes .......................................... 7,285 1,942

Changes in operating assets and liabilities,
net of acquisitions:
Accounts receivable .......................................... (1,328) (1,053)
Prepaid expenses and other ................................... (6,308) (5,646)
Accounts payable ............................................. (2,325) (633)
Other liabilities ............................................ 3,477 11,156
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Net cash provided by operating activities ................. 71,370 71,499
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INVESTING ACTIVITIES
Purchases of property and equipment ............................... (20,712) (17,045)
Acquisitions of towers and customer contracts ..................... -- (3,558)
Disposal of discontinued operations, net of cash sold ............. -- (551)
Collection of notes receivable .................................... 1,071 --
Proceeds from the disposition of assets ........................... 2,185 1,156
Acquisitions of businesses, net of cash acquired .................. (2,761) --
Other, net ........................................................ (3) --
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Net cash used in investing activities ........................... (20,220) (19,998)
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FINANCING ACTIVITIES
Proceeds from issuance of common stock ............................ 14,756 14,591
Payments of debt and capital leases ............................... (2,302) (625)
Payments received on executive notes .............................. -- 1,425
Debt issuance costs ............................................... (173) (457)
Purchases of common stock ......................................... (9,451) --
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Net cash provided by financing activities ...................... 2,830 14,934
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Net increase in cash and cash equivalents ...................... 53,980 66,435
Cash and cash equivalents at beginning of period .................. 34,649 60,410
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Cash and cash equivalents at end of period ........................ $ 88,629 $ 126,845
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SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest (net of interest capitalized) .............. $ 21,850 $ 17,741
Cash paid for income taxes ........................................ 713 1,606
Tower acquisitions applied against liability under
SBC agreement.................................................... -- 1,322

SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND
FINANCING ACTIVITIES:
Interest capitalized .............................................. $ 534 $ 346
Capital lease obligations incurred related to property
and equipment, net .............................................. 396 188